#312F45
Closest named color: Space Cadet (#2B2D42). oklch(31.7% 0.039 288.1), rgb(49, 47, 69).
Aa
White text reads best on this color (12.93:1).
About this color
#312F45 is a dark, muted purple. In OKLCH its lightness is 32%, its chroma 0.039 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.014 away. White text reads best on it, at 12.93:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.62:1 |
| White text | 12.93:1 |
Values
| HEX | #312F45 |
| RGB | rgb(49, 47, 69) |
| HSL | hsl(245, 19%, 23%) |
| OKLCH | oklch(31.7% 0.039 288.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #312F45 | 12.93:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #312F45 | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #312F45 text on white | 12.93:1 | AAA | Lc 99.1 | Preferred for body text |
| #312F45 text on black | 1.62:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E9E9F3
oklch(93.7% 0.013 286.1)
-
Step 200
200
#D8D7EA
oklch(88.6% 0.026 288.3)
-
Step 300
300
#BEBCDD
oklch(80.8% 0.046 288.1)
-
Step 400
400
#9E9ACD
oklch(70.8% 0.074 287.9)
-
Step 500
500
#8780BF
oklch(63.1% 0.094 288.5)
-
Step 600
600
#7169AC
oklch(55.7% 0.102 288.1)
-
Step 700
700
#5F5793
oklch(49.1% 0.095 288.5)
-
Step 800
800
#4D4778
oklch(42.6% 0.08 288.1)
-
Step 900
900
#403C60
oklch(37.7% 0.061 288.2)
-
Step 950
950 (this color)
#312F45
oklch(31.7% 0.039 288.1)
#312F45 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #293246 | 0.015 |
| Deuteranopia (no green cones) | #293144 | 0.015 |
| Tritanopia (no blue cones) | #2D3337 | 0.033 |
| Achromatopsia (no color) | #313131 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #312F45
#312F45
oklch(31.7% 0.039 288.1)
- #34341C
#34341C
oklch(31.8% 0.039 108.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #312F45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.014
- Gunmetal #293241 ΔE 0.019
- Onyx #343A40 ΔE 0.041
- Prussian Blue #1D3557 ΔE 0.041
- Dark Blue Grey #1F3B4D ΔE 0.042
- Oxford Blue #1B263B ΔE 0.051
- Midnight Green #073B4C ΔE 0.055
- Dark #1B2431 ΔE 0.063
Use #312F45 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.